Pycnogonida |
Pantopoda |
Nymphonidae
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
; Mức độ sâu 4 - 1656 m (Tài liệu tham khảo 119523). Boreal; 85°N - 33°N, 180°W - 180°E
Northern Atlantic, Northern Pacific and the Arctic Sea. Temperate to polar.
Length at first maturity / Bộ gần gũi / Weight / Age
Chín muồi sinh dục: Lm ?  range ? - ? cm
Species extremely variable, particularly in appendage length ratios. Chela palm is much longer fingers, tarsus length equals propodus (or is sometimes shorter), ocular tubercle is taller, third palp segment much longer and fifth segment longer than fourth, and major leg segments are measurably longer than in Nymphon brevitarse.
Variation occurs in terminal leg segment length ratios. Tarsus can be slightly shorter than propodus or twice as long as propodus or longer, and sole spines vary in number and length (Ref. 2153, p. 21).
Shelf (Ref. 19). Found at depths of 4 to 1656 m (Ref. 119523).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Eggs | Sự sinh sản | Larvae
Members of the class Pycnogonida are gonochoric and sexually dimorphic. During copulation, male usually suspends itself beneath the female. Fertilization occurs as the eggs leave the female's ovigers. Males brood the egg masses until they hatch. Life cycle: Eggs hatch into protonymphon larva then to adults.
de Kluijver, M.J. and S.S. Ingalsuo. 2005. (Tài liệu tham khảo 256)
IUCN Red List Status
(Tài liệu tham khảo 130435: Version 2024-2)
CITES status (Tài liệu tham khảo 108899)
Not Evaluated
CMS (Tài liệu tham khảo 116361)
Not Evaluated
Threat to humans
Human uses
| FishSource |
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Food rations
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Population dynamicsSự sinh trưởng
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Bổ xung
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Life cycleSự tái sinh sảnChín muồi sinh dụcSự sinh sảnĐẻ trứngEggsEgg developmentLarvaeSự biến động ấu trùng Human RelatedAquaculture profiles
Stamps, coins, misc.
Các nguồn internet
Estimates based on models
Preferred temperature
(Ref.
115969): 0.4 - 8.1, mean 2.9 (based on 1951 cells).
Price category
Unknown.